MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of external links, many of which are to other PDFs, suggesting a link farm or SEO manipulation tactic. The primary URL, https://nipisod.ru/strik?utm_term=importance+of+research+in+business+organization+pdf, is likely part of this scheme. ClamAV and ML classifiers also flagged this file as malicious, specifically as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 5
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://nipisod.ru/strik?utm_term=importance+of+research+in+business+organization+pdf
- https://cdn-cms.f-static.net/uploads/4368496/normal_603fe3a1a8f85.pdf
- https://toginomaba.weebly.com/uploads/1/3/4/0/134042469/pezirumovab.pdf
- https://cdn-cms.f-static.net/uploads/4495392/normal_605ee517e1d8f.pdf
- https://cdn-cms.f-static.net/uploads/4464319/normal_602ab68357209.pdf
- https://silusakukomuvu.weebly.com/uploads/1/3/4/7/134763582/4904899.pdf
- https://static.s123-cdn-static.com/uploads/4453560/normal_5ff290d066121.pdf
- https://static.s123-cdn-static.com/uploads/4466391/normal_5feb7f438cc59.pdf
- https://static.s123-cdn-static-d.com/uploads/4377380/normal_60b195090fb8c.pdf
- https://static.s123-cdn-static.com/uploads/4474759/normal_5ffa6b4370138.pdf
- https://kawepuwaseleza.weebly.com/uploads/1/3/4/8/134849925/nebogugakofafe.pdf
- https://cdn-cms.f-static.net/uploads/4417145/normal_603fbd35c75ab.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/302fc7c0-0575-404c-a86a-9cfc723fe6fd/xanegajosidaduvogerava.pdf
- https://uploads.strikinglycdn.com/files/c12e3285-90cb-4979-ae1b-4452aa2af033/solutions_pre_intermediate_workbook_download.pdf
- https://uploads.strikinglycdn.com/files/31344809-6965-4cb3-a23f-afbc49e74be7/how_to_use_turtle_wax_headlight_restoration_kit.pdf
- https://uploads.strikinglycdn.com/files/de1a1385-f99d-4fa9-952b-ef6bc54a91da/wupinubinenatoruk.pdf
- https://uploads.strikinglycdn.com/files/ea083731-f8ef-4732-b117-5adbdfbdacc3/does_blue_iris_have_a_mobile_app.pdf
- https://uploads.strikinglycdn.com/files/448309ea-17ad-407b-a35d-4f15dc4e0422/pozimotifenirobadibalor.pdf
- https://uploads.strikinglycdn.com/files/d6396fff-e7c4-4455-ae9b-b556269e2ced/zusijumotanikuvagugo.pdf
- https://uploads.strikinglycdn.com/files/bcc71a4e-53f4-46dc-b92f-9bc0ca05205d/8598142450.pdf
- https://uploads.strikinglycdn.com/files/f8bfd6d5-4544-4fd7-b3d4-2c90d7636c80/isabel_allende_el_amante_japones_libro.pdf
- https://uploads.strikinglycdn.com/files/74262925-b196-43d9-bb5a-6ccb197a8cde/beturewazojolupokizelipus.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000141c5.binb8fc1869a40348a70082daa4ab00892267ebbea0cb0e7095afeb1171377528f2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x141C5 | 5664 bytes |
font_01_sfnt_off000154dd.binac5b4a99e4057d44c9e418077dac555d89754b05b909e19db1213bd6cee72d52 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x154DD | 10764 bytes |
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